636  * indicated by the semaphore operation (sem_op):
648 	int result, sem_op, nsops;  in perform_atomic_semop_slow()  local
662 		sem_op = sop->sem_op;  in perform_atomic_semop_slow()
665 		if (!sem_op && result)  in perform_atomic_semop_slow()
668 		result += sem_op;  in perform_atomic_semop_slow()
675 			int undo = un->semadj[sop->sem_num] - sem_op;  in perform_atomic_semop_slow()
709 		sem_op = sop->sem_op;  in perform_atomic_semop_slow()
710 		sma->sems[sop->sem_num].semval -= sem_op;  in perform_atomic_semop_slow()
712 			un->semadj[sop->sem_num] += sem_op;  in perform_atomic_semop_slow()
721 	int result, sem_op, nsops;  in perform_atomic_semop()  local
744 		sem_op = sop->sem_op;  in perform_atomic_semop()
747 		if (!sem_op && result)  in perform_atomic_semop()
750 		result += sem_op;  in perform_atomic_semop()
758 			int undo = un->semadj[sop->sem_num] - sem_op;  in perform_atomic_semop()
768 		sem_op = sop->sem_op;  in perform_atomic_semop()
771 			int undo = un->semadj[sop->sem_num] - sem_op;  in perform_atomic_semop()
775 		curr->semval += sem_op;  in perform_atomic_semop()
1058 				if (sops[i].sem_op > 0) {  in do_smart_update()
1091 	if (count_zero && sop->sem_op == 0)  in check_qop()
1093 	if (!count_zero && sop->sem_op < 0)  in check_qop()
2029 		if (sop->sem_op != 0) {  in __do_semtimedop()